GCAN -IO-8000 User Manual

Canopen bus coupler
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GCAN-IO-8000
CANopen bus coupler
User manual
Document version: V3.25 (2019/03/20)

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Summary of Contents for GCAN GCAN-IO-8000

  • Page 1 GCAN-IO-8000 CANopen bus coupler User manual Document version: V3.25 (2019/03/20)
  • Page 2 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 revise history Version Date The reason V1.00 2015/10/16 Create document V2.01 2015/12/20 Correct equipment working parameters V3.01 2017/11/22 Add some parameters V3.02 2018/01/22 Add communication protocol section V3.03 2018/03/22 Correct equipment working parameters V3.25...
  • Page 3: Table Of Contents

    1.3 Typical applications ..................5 2. Equipment installation and use .................. 5 2.1 Module appearance and dimensions ..............5 Figure 2.1 Appearance of GCAN-IO-8000 CANopen bus coupler ....... 5 2.1 Module fixing ....................5 2.2 Wiring method ....................7 2.3 System status indicator .................. 9 3.
  • Page 4: Function Introduction

    CAN bus environments. In addition, the firmware can be upgraded through the configuration interface. GCAN-IO-8000 bus coupler can connect all bus terminal modules. As far as the user is concerned, the processing of analog input/output signals is no different from the processing of other types of signals.
  • Page 5: Typical Applications

    Perform data collection and data transmission with CANopen protocol. 2. Equipment installation and use This chapter will explain in detail the installation method, wiring method, the meaning of the indicator light and the meaning of the interface of GCAN-IO-8000 CANopen bus coupler. 2.1 Module appearance and dimensions The appearance of GCAN-IO-8000 is shown in Figure 2.1.
  • Page 6 Figure 2.2 GCAN-IO-8000 module installation Figure 2.3 GCAN-IO-8000 module self-locking mechanism Please install the GCAN-IO-8000 CANopen bus coupler on the guide rail as shown in Figure 2.3 until the latch snaps and makes a “click” sound. GCAN-IO-8000 CANopen bus coupler has a self-locking mechanism, which can effectively prevent the device from falling.
  • Page 7: Wiring Method

    Then insert the cable into the circular hole. After plugging in, pull out the screwdriver, and the cable can be firmly locked in the circular hole Figure 2.4 Wiring of GCAN-IO-8000 module power supply Product data sheet...
  • Page 8 CANopen bus coupler—GCAN-IO-8000 Figure 2.5 GCAN-IO-8000 module power terminal block The power terminal block of GCAN-IO-8000 CANopen bus coupler is shown in Figure 2.5. The GCAN-IO-8000 CANopen bus coupler contains 8 terminals, and the corresponding serial numbers and meanings of each terminal are shown in Table 2.1.
  • Page 9: System Status Indicator

    CANopen bus coupler—GCAN-IO-8000 Figure 2.6 GCAN-IO-8000 module CAN bus terminal block The CAN bus terminal block of GCAN-IO-8000 CANopen bus coupler is shown in Figure 2.6. The CAN bus terminal block of GCAN-IO-8000 contains 4 terminals, and the corresponding serial number and meaning of each terminal are shown in Table 2.2.
  • Page 10 Always on The internal bus power supply of Position 3 on the right the terminal is normal not bright Abnormal internal bus power supply of the terminal Table 2.4 GCAN-IO-8000 module indicator status Product data sheet Shenyang Guangcheng Technology CO.LTD.
  • Page 11: Communication Connection

    GCAN-IO-8000 CANopen bus coupler uses standard serial port level (RS232: ± 3~15V), so the module can be directly connected to devices with RS232 interface. The baud rate of the RS232 interface of the GCAN-IO-8000 CANopen bus coupler cannot be modified and is fixed at 19200bps.
  • Page 12: Can Bus Termination Resistance

    Figure 3.2 GCAN-IO-8000 connected with other CAN node devices Please note: The 120Ω termination resistor is not integrated inside the GCAN-IO-8000 module. If the number of nodes is greater than 2, the intermediate node does not need to install a 120Ω termination resistor. When needed, connect CAN_H and CAN_L at both ends of the resistor, as shown in Figure 3.2.
  • Page 13 "hexadecimal display" or "hexadecimal transmission". You can send "setbaud=500000" to modify the baud rate of the GCAN-IO-8000 module to 500kbps. At the same time, you can send "getbaud" to get the CAN baud rate of the machine, and the unit of the reply value is bps.
  • Page 14 RS232 interface. You can send "setid=3" to modify the CANopen node ID of GCAN-IO-8000 module to 3. At the same time, you can send "getid" to get the CANopen node ID of this machine. The node number can be set arbitrarily within 1-127.
  • Page 15: Communication Protocol

    ID is 0x700+Node ID, and the frame data is 0x7F. For example: Set the Node ID of GCAN-IO-8000 to 1 through the DIP switch, then USBCAN-II Pro as the master device can receive a start command, the frame ID is 0x701, and the frame data is 0x7F.
  • Page 16 (00 is all nodes) . For example: The node ID of GCAN-IO-8000 is 1, and the command GCAN-IO-8000 is to enter the operation state (01), then the NMT command frame ID is 0x000, and the frame data is 0x01,0x01.
  • Page 17: Equipped With Gc-1008 Module

    The state of the digital input is represented by a byte, channel 8 is in the high bit, and channel 1 is in the low bit. For example, the node number of the GCAN-IO-8000 module is set to 1. The state of Product data sheet...
  • Page 18: Equipped With Gc-2008 Module

    1 is in the low bit. For example, the node number of the GCAN-IO-8000 module is set to 1. Need to set the state of channel 8 and channel 4 to 1, and set all other states to 0, then the CAN Product data sheet Shenyang Guangcheng Technology CO.LTD.
  • Page 19: Equipped With Gc-3804 Module

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 bus DO status data to be sent is 88. The frame ID to be sent to GCAN-IO-8000 is 0x201, the data length (DLC) is 8, and the frame data is 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00.
  • Page 20: Equipped With Multiple Sets Of Modules At The Same Time

    GCAN-IO-8000 coupler will be sent according to the following table. For example, when the GCAN-IO-8000 node number is 3 and it is equipped with 9 GC-1008 modules at the same time, you will receive two sets of data with frame IDs 0x183 and 0x283.
  • Page 21 GCAN-IO-8000, from near to far, and the closest is No. 1. The TPDO data sent by the GCAN-IO-8000 coupler will be sent according to the following table. For example, when the GCAN-IO-8000 node number is 3 and four GC-3804 modules are installed at the same time, you will receive four sets of data with a frame ID of 0x183.
  • Page 22 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 Frame ID Frame data number number number number number number number number 0x180+No GC-380 GC-380 GC-380 GC-380 GC-380 GC-380 de ID GC-100 GC-100 4 first 4 third 4 fourth 4 fifth 4 sixth...
  • Page 23: Technical Specifications

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 5. Technical specifications Interface characteristics CANopen baud rate (bps) 1000k,500k,250k,125k,100k,50k,10k PDO mode Synchronization, looping, event-driven, polling Number of bus terminal 32个 modules Fieldbus maximum number 96 byte input and 96 byte output...
  • Page 24: Gc Series Module Selection Table

    6. GC series module selection table GCAN-IO-8000 itself cannot perform complete control functions. A complete control system consists of a bus module controller (GCAN-IO-8000), several GC series terminal modules (GC-1008, GC-3804, etc.) and a terminal terminal module (GC-0001). Among them, GC series terminal modules need to be purchased separately from our company, and terminal terminal modules are included with GCAN-IO-8000.
  • Page 25 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 GC-3844/3854/ K type / S type / T type Thermocoupl 4 channels 3864 thermocouple GC-4602 Voltage output, 16 bits -5V~+5V 2 channels GC-4622 Voltage output, 16 bits -10V~+10V 2 channels GC-4642 Current output, 16 bits...
  • Page 26: Appendix A: Can2.0A Protocol Frame Format

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 Appendix A: CAN2.0A protocol frame format CAN2.0A standard frame The CAN standard frame information is 11 bytes, including two parts: information data parts. first bytes information part. Byte 1 is frame information. The 7th bit (FF) indicates the frame format. In the standard frame, FF=0;...
  • Page 27: Appendix B: Introduction To Canopen Protocol

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 Appendix B: Introduction to CANopen Protocol The CANopen protocol was developed in the late 1990s by the CiA organization (CAN-in-Automation) on the basis of CAL (CAN Application Layer). Once launched, it was widely recognized and applied in Europe. After several revisions to the CANopen protocol specification text, the stability, real-time, and anti-interference properties of the CANopen protocol have been further improved.
  • Page 28: Predefined Can Identifier

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 EDS:Electronic Data Sheet CAN-ID: Controller Area Network-Identify COB-ID: Communication Object-Identify SSDO:Servers Service Data Object DS:Draft Standard 2. Writing rules In this manual, the writing of the object dictionary index and sub-index follow the...
  • Page 29: Canopen Communication

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 NMT error control Network management error 1110b 701h-77Fh control CANopen object dictionary (OD: Object Dictionary) is the core concept of CANopen protocol. The so-called object dictionary is an ordered group of objects. Each object is addressed with a 16-bit index value.
  • Page 30 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 NMT (Network Management), service data object SDO (Service Data Object), process data object PDO (Process Data Object), predefined message or special function object. 1. Network Management Management messages are responsible for layer management, network management, and ID assignment services, such as initialization, configuration, and network management (including node protection).
  • Page 31 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000    As shown in the figure above, for example, a CANopen master station sends a frame of data to the slave station, the frame ID is 0x000, the frame data is 0x01, 0x02, then this command can make the CANopen slave device with node number 2 enter the operating state .
  • Page 32 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000  2. Service Data Object SDO is mainly used by the master node to configure the parameter of the slave node. Service confirmation is the biggest feature of SDO. It generates a response for each message to ensure the accuracy of data transmission.
  • Page 33 Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000  Figure A3 Producer consumer model  PDO communication has no protocol, and the content of PDO data is defined by its CAN-ID (also called COB-ID);  Each PDO is described by 2 objects in the object dictionary: ...
  • Page 34: Canopen Network Configuration

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000  4. Predefined messages or special function objects Predefined messages or special function objects provide specific functions for CANopen devices, which is convenient for CANopen master to manage slave stations. In the CANopen protocol, the COB-ID has been predefined for special functions, which mainly have the following special messages: ...
  • Page 35: Sales And Service

    Shenyang Guangcheng Technology Co., Ltd. CANopen bus coupler—GCAN-IO-8000 Sales and Service Shenyang Guangcheng Technology Co., Ltd. Address: No. 135-21, Changqing South Street, Hunnan District, Shenyang City, Liaoning Province Postcode: 110000 Phone: +8613644001762 网址:www1.gcanbox.com wechat:gckj777 whatsapp:+8613644001762 email:sygckj@gmail.com Product data sheet Shenyang Guangcheng Technology CO.LTD.

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